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首页> 外文期刊>Journal of Biomechanics >Comparison of acoustic characteristics predicted by Biot's theory and the modified Biot-Attenborough model in cancellous bone
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Comparison of acoustic characteristics predicted by Biot's theory and the modified Biot-Attenborough model in cancellous bone

机译:用Biot理论和改进的Biot-Attenborough模型预测的松质骨声学特性的比较

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摘要

Biot's theory and the modified Biot-Attenborough (MBA) model are applied to predict the dependences of acoustic characteristics on frequency and on porosity in cancellous bone. The phase velocities and the attenuation coefficients predicted by both theories are compared with the experimental data of bovine cancellous bone specimens published in the literature. Biot's theory successfully predicts the dependences of the phase velocity on frequency and on porosity in cancellous bone, whereas a significant discrepancy is observed between the predicted and the measured attenuation coefficients. The MBA model agrees well with the frequency and the porosity dependences of the phase velocity and the attenuation coefficient experimentally measured in bovine bones. Although the MBA model relies on phenomenological parameters derived from the experimental data, its approach to cancellous bone can be usefully employed in the field of clinical ultrasonic bone assessment. (C) 2005 Elsevier Ltd. All rights reserved.
机译:Biot理论和改进的Biot-Attenborough(MBA)模型用于预测声学特性对松质骨的频率和孔隙率的依赖性。将两种理论预测的相速度和衰减系数与文献中发表的牛松质骨标本的实验数据进行了比较。 Biot的理论成功地预测了相速度对松质骨中频率和孔隙率的依赖性,而观察到的衰减系数与测量的衰减系数之间却存在显着差异。 MBA模型与在牛骨中实验测量的相速度和衰减系数的频率和孔隙率相关性非常吻合。尽管MBA模型依赖于从实验数据中得出的现象学参数,但是它的松质骨方法可以在临床超声骨评估领域中有用。 (C)2005 Elsevier Ltd.保留所有权利。

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